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[期刊论文] 作者：Haifeng Li,Junlei Liu,Fengjiao,
来源：能源与动力工程(英文) 年份：2013
The accurate DC system model is the key to fault analysis and harmonic calculation of AC/DC system. In this paper, a frequency domain analysis model of DC syste...
Application and Research of Meteorological Data in Lightning Protection Technical Service of Oil Dep
[期刊论文] 作者：Liu Fengjiao,He Qiuyan,Tang Ya,
来源：气象与环境研究:英文版 年份：2019
In this paper, lightning protection technical service of oil depot is taken as research object. It is proposed using various meteorological data to carry out mu...
Catalyst-free and highly diastereoselectivity intramolecular 1,3-dipolar cycloadditionconstruct to P
[会议论文] 作者：Jie Jiang,Zhang Xiangzhu,Zhongxiang Zhu,Liu Fengjiao,Mingshu Wu,
来源：河南省化学会2016年学术年会 年份：2016
Pyrrolizidine and coumarins both have biologically activty,and their molecular skeleton are commonly found subunits in a number of biomolecules and drug mol...
[会议论文] 作者：Liu Fengjiao,刘凤娇,Sun Yujun,孙玉军,
来源：中国生态学学会 年份：2009
旅游干扰是影响景区植物物种多样性变化的重要因素，该文综合分析了国内外有关文献，简单探讨了旅游干扰与物种多样性之间的关系。通过对森林旅游干扰及其特征分析，指出其对物种多样性的影响，并提出相应的对策，为当前的森林旅游开发与景区植物物种多样性保护提供借鉴和......
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